Randomized Qns(Second Degree Eqns)
SecondDegreeEquations- STD 10
SelfEvaluation/Assessment
Question : 1 : (4 Marks)
Sum of two numbers is , and their product .Find the numbers
Sum =
Product =
∴ First Number =
∴ Second Number =
Question : 2 (4 Marks)
The difference of two numbers is , Product Find the NumbersDifference =
Product =
∴ First Number =
∴ Second Number =
Question : 3 (6 Marks)
Find a,b,c and calculate b²-4acx²+ x+ = 0
a =
b =
c =
b²=
4ac =
∴ b²-4ac =
Question : 4 (6 Marks)
Find a,b,c and calculate b²-4acx² x+ = 0
a =
b =
c =
b²=
4ac =
∴ b²-4ac =
Question : 5 (6 Marks)
Find a,b,c and calculate b²-4acx² x = 0
a =
b =
c =
b²=
4ac =
∴ b²-4ac =
Question : 6 (7 Marks)
Find a,b,c and calculate b²-4acHow many solutions are ?
x² x+ = 0
a =
b =
c =
b²=
4ac =
∴ b²-4ac =
∴ Number of solutions =
Question : 7 (6 Marks)
Factorise the given second degree polynomialx²+ x+
Sum =
Product =
∴ First Number =
∴ Second Number =
∴ Factorised form =
Question : 8 (13 Marks)
Solve the equation by completing the squarex²+ x=
Half of coeifficent of x=
Square of this number =
∴ Number to be added on both sides
New equation
x²+ x+ =
∴ Factor Form
(x+)²= ²
∴ x+ =
∴ x =
OR
x+ =
∴ x =
Question : 9 (13 Marks)
Solve the equation by completing the squarex²+ x+ =
Half of coeifficent of x=
Square of this number =
∴ Number to be subtracted from both sides
New equation
x²+ x+ =
∴ Factor Form
(x + )²= ²
∴ x+ =
∴ x =
OR
x+ =
∴ x =